The Imaginary Starobinsky Model and Higher Curvature Corrections

Abstract

We elaborate on the predictions of the imaginary Starobinsky model of inflation coupled to matter, where the inflaton is identified with the imaginary part of the inflaton multiplet suggested by the Supergravity embedding of a pure R + R^2 gravity. In particular, we study the impact of higher-order curvature terms and show that, depending on the parameter range, one may find either a quadratic model of chaotic inflation or monomial models of chaotic inflation with fractional powers between 1 and 2.

18 pages

References in corpus (16)

• From Linear SUSY to Constrained Superfields
• The Minimal Volkov - Akulov - Starobinsky Supergravity
• Comments on the Starobinsky Model of Inflation and its Descendants
• Embedding (R+R^2)-Inflation into Supergravity
• The Imaginary Starobinsky Model
• Higher-Derivative Chiral Superfield Actions Coupled to N=1 Supergravity
• Chaotic Inflation in Supergravity after Planck and BICEP2
• Resurrecting Quadratic Inflation in No-Scale Supergravity in Light of BICEP2
• Emerging Potentials in Higher-Derivative Gauged Chiral Models Coupled to N=1 Supergravity
• A No-Scale Inflationary Model to Fit Them All
• Remarks about the Tensor Mode Detection by the BICEP2 Collaboration and the Super-Planckian Excursions of the Inflaton Field
• Is Imaginary Starobinsky Model Real?
• On the Topology of the Inflaton Field in Minimal Supergravity Models
• Power law Starobinsky model of inflation from no-scale SUGRA
• On the Gauged Kahler Isometry in Minimal Supergravity Models of Inflation
• DBI Inflation in N=1 Supergravity

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• Generalized Non-Minimal Derivative Coupling: Application to Inflation and Primordial Black Hole Production
• Phenomenological Aspects of No-Scale Inflation Models
• Two-Field Analysis of No-Scale Supergravity Inflation
• Keeping the relation between the Starobinsky model and no-scale supergravity ACTive
• Unified No-Scale Attractors
• On reaching the adiabatic limit in multi-field inflation
• No-Scale Inflation
• The general de Sitter supergravity component action
• Starobinsky-Like Inflation and Neutrino Masses in a No-Scale SO(10) Model
• Slow and Safe Gravitinos
• Gravity Waves From Non-Minimal Quadratic Inflation
• Reconciling Induced-Gravity Inflation in Supergravity With The Planck 2013 & BICEP2 Results
• Exponential potential for an inflaton with nonminimal kinetic coupling and its supergravity embedding
• Inflation and Leptogenesis in High-Scale Supersymmetry
• Phenomenology and Cosmology of No-Scale Attractor Models of Inflation
• From $R^2$ Gravity to No-Scale Supergravity
• Cosmological evolution of thermal relic particles in $f(R)$ gravity
• Deforming the Starobinsky model in ghost-free higher derivative supergravities
• Non-Oscillatory No-Scale Inflation
• From Minkowski to de Sitter in Multifield No-Scale Models
• Higher Curvature Supergravity, Supersymmetry Breaking and Inflation
• Multiple Field Inflation and Signatures of Heavy Physics in the CMB
• Ghostbusters in $f(R)$ supergravity
• ${\mathcal{R}}^2$ Supergravity
• Black Hole Solutions in $R^2$ Gravity